Buggy code:
public class AnsiSignaturesTest extends BaseJDBCTestCase { public static final String MISSING_METHOD_SQLSTATE = "XJ001" ; public static final String TRIED_ALL_COMBINATIONS = "42X50" ; public static final String AMBIGUOUS = "42X73" ; public AnsiSignaturesTest ( String name ) { } public static Test suite ( ) { <START_BUG> TestSuite suite = ( ( TestSuite ) ( TestConfiguration . embeddedSuite ( AnsiSignaturesTest . class ) ) ) ; <END_BUG> return new org . apache . derbyTesting . junit . CleanDatabaseTestSetup ( suite ) ; } public void test_smallint_short_short ( ) throws Exception { } public void test_smallint_short_Integer ( ) throws Exception { } public void test_smallint_Integer_short ( ) throws Exception { } public void test_smallint_Integer_Integer ( ) throws Exception { } public void test_integer_int_int ( ) throws Exception { } public void test_integer_int_Integer ( ) throws Exception { } public void test_integer_Integer_int ( ) throws Exception { } public void test_integer_Integer_Integer ( ) throws Exception { } public void test_bigint_long_long ( ) throws Exception { } public void test_bigint_long_Long ( ) throws Exception { } public void test_bigint_Long_long ( ) throws Exception { } public void test_bigint_Long_Long ( ) throws Exception { } public void test_real_float_float ( ) throws Exception { } public void test_real_float_Float ( ) throws Exception { } public void test_real_Float_float ( ) throws Exception { } public void test_real_Float_Float ( ) throws Exception { } public void test_double_double_double ( ) throws Exception { } public void test_double_double_Double ( ) throws Exception { } public void test_double_Double_double ( ) throws Exception { } public void test_double_Double_Double ( ) throws Exception { } public void test_numeric_BigDecimal_BigDecimal ( ) throws Exception { } public void test_decimal_BigDecimal_BigDecimal ( ) throws Exception { } public void test_varchar_String_String ( ) throws Exception { } public void test_char_String_String ( ) throws Exception { } public void test_longvarchar_String_String ( ) throws Exception { } public void test_bigint__smallint_int_bigint_real_double ( ) throws Exception { } public void test_flipped_bigint__smallint_int_bigint_real_double ( ) throws Exception { } public void test_binary_bytes_bytes ( ) throws Exception { } public void test_binary_bytes_int ( ) throws Exception { } public void test_varbinary_bytes_bytes ( ) throws Exception { } public void test_varbinary_bytes_int ( ) throws Exception { } public void test_longvarbinary_bytes_bytes ( ) throws Exception { } public void test_longvarbinary_bytes_int ( ) throws Exception { } public void test_date_Date_Date ( ) throws Exception { } public void test_time_Time_Time ( ) throws Exception { } public void test_timestamp_Timestamp_Timestamp ( ) throws Exception { } public void test_clob_Clob_String ( ) throws Exception { } public void test_blob_Blob_String ( ) throws Exception { } public void test_smallint_bad_short_Short ( ) throws Exception { } public void test_smallint_bad_Short_short ( ) throws Exception { } public void test_smallint_bad_Short_Short ( ) throws Exception { } public void test_smallint_badreturn_byte_short ( ) throws Exception { } public void test_integer_badreturn_byte_int ( ) throws Exception { } public void test_bigint_badreturn_byte_long ( ) throws Exception { } public void test_real_badreturn_byte_float ( ) throws Exception { } public void test_double_badreturn_byte_double ( ) throws Exception { } public void test_binary_badreturn_bytes_bytes ( ) throws Exception { } public void test_varbinary_badreturn_bytes_bytes ( ) throws Exception { } public void test_longvarbinary_badreturn_bytes_bytes ( ) throws Exception { } public void test_smallint_amb_short_short ( ) throws Exception { } public void test_smallint_amb_Integer_short ( ) throws Exception { } public void test_smallint_amb_byte_short ( ) throws Exception { } public void test_integer_amb_int_int ( ) throws Exception { } public void test_integer_amb_Integer_int ( ) throws Exception { } public void test_integer_amb_byte_int ( ) throws Exception { } public void test_bigint_amb_long_long ( ) throws Exception { } public void test_bigint_amb_Long_long ( ) throws Exception { } public void test_bigint_amb_byte_long ( ) throws Exception { } public void test_real_amb_float_float ( ) throws Exception { } public void test_real_amb_Float_float ( ) throws Exception { } public void test_real_amb_byte_float ( ) throws Exception { } public void test_double_amb_double_double ( ) throws Exception { } public void test_double_amb_Double_double ( ) throws Exception { } public void test_double_amb_byte_double ( ) throws Exception { } public void test_smallint_unres_short ( ) throws Exception { } public void test_smallint_unres_Short ( ) throws Exception { } public void test_integer_unres_int ( ) throws Exception { } public void test_integer_unres_Integer ( ) throws Exception { } public void test_bigint_unres_long ( ) throws Exception { } public void test_bigint_unres_Long ( ) throws Exception { } public void test_real_unres_float ( ) throws Exception { } public void test_real_unres_Float ( ) throws Exception { } public void test_double_unres_double ( ) throws Exception { } public void test_double_unres_Double ( ) throws Exception { } private void declareAndRunFunction ( String name , String returnType , String [ ] argTypes , String args , String result ) throws Exception { } private void declareAndFailFunction ( String name , String returnType , String [ ] argTypes , String args , String result , String sqlstate ) throws Exception { } private void runFunction ( Connection conn , String name , String args , String result , String sqlstate ) throws Exception { } private void declareFunction ( Connection conn , String name , String returnType , String [ ] argTypes ) throws Exception { } private String doubleQuote ( String raw ) { } }

Fix:
TestSuite suite = ( ( TestSuite ) ( TestConfiguration . defaultSuite ( AnsiSignaturesTest . class ) ) ) ;